Rotary valve.



L L. ALDERSONL nor/my VALVE. APPLICATION FILED FEB. 6' 1915- mfiwm m Patented Apr. 1918.

v 3 SHEETS-SHEET I.

msomlAldelow J. L. ALDERSON.

ROTARY VALV.E. APPLICATION FILED FEB. 5.1915.

1 $63 991 Patented Apr. 23,1918.

' 3SHEETS-SHEET 2.

J. L. ALDERSON.

ROTARY-VALVE.

APPLlCATlON FILED FEB. 6. 1915.

. m mm M 0 m mm L.

Mm dw JASON L. ALDEBSON, or scorn BEND, INDIANA.

ROTARY VALVE.

To all whom it may concern:

Be it known that I, JAs'oN L. ALDERSON, a V

citizen of the United States, residing at South Bend, in the county of St. Joseph and State of Indiana, have invented new and useful Improvements in Rotary Valves, of which the following i a specification.

The present invention relates to improvements in valves for hydro-carbon engines.

In carrying out my invention I propose to provide a valve for hydro-carbon engines whereby uniformity of movement of the valves is Secured and maintained, so that the intake of gas and the discharge of the hydro-carbons is accomplished when the piston heads are in proper position and whereby the maximum efficiency of the engine is maintained.

Also :1 aim, to provide a rotary valve which is of anextremely simple construction and thoroughly efficient in operation. With the above and other objects in view, the improvement resides in the construction, combination and arrangement of parts set forth in the following specification and falling within the scope of the appended claim.

In the drawings: Figure 1 is an elevation of an engine provided with my improvement, Fig. 2 is a longitudinal sectional view approximately 0n the line 2-2 of Fig. 1, V

Fig. 3 is a similar sectional view on the line 33 of Fig. 1,

Fig. 4 is a view representing a partial vertical section through the device illustrated in Fig. 2 on the line w-a thereof,

Fig. 5 isa similar sectional view on the line b?; of Fig. 2,

Fig. 6' is a similar section on the line c-c of Fig. 2, i Flg. 7 is a similar sectional view on the .line d-d of Fig. 2, and

Fig. 8 is a sectional view on the line e-c of Fig. 2. As is well known high efliciencyin hydrocarbon engines is largely governed by the action of the valves which control the inlet and outlet ports to the combustion chain:

here. In hand controlled valves the cams often vary the distance of the throw of the 'valves with the rapid increase of speed of the engine so that the valves willnot be un iformly closed at theproper time. This Specification of Letters latent.

Patented Apr. 23, 191%.

Application filed February 6, 1915. Serial No. 6,645.

variation in movement of the valves effects a the eiliciency of the engine by limiting the charge of gas taken into the combustion chamber or by preventing a complete discharge of the hydro-carbon. In eithercase the engine does not develop the power it is capable of developing and among the obects of my invention is to overcome the deficiency herein set forth.

In the embodiment of my ln'vention, shown in the drawings, the improvement 1s pplied to an explosive engine of the four-cycle type but manifestly, as will later appear,

maybe applied to other types of engines and to other devices in which fluids are handied, such, for instance, as devices for pumping fluids; for compressing r exhausting gases and for other such like purposes. V

. Referring now to the drawings in detail, in which like characters of reference indicate corresponding parts throughout the several views, 10, 11, 12 and 13 indicate the cylinders of. a four-cycle engine; 10 11 12, and 13 the respective pistons adapted for reciprocation in the said cylinders; 1a the crank shaft and 10 11 12 and 13 the respective connecting rods by which the several engines are connected to the crank shaft 14.

15 designates the crank casing inclosing the crank shaft, the side members of which being provided with suitable bearings within which the ends of the crank shaft 14: are

journaled. The several cylinders may be provided with the usual water jackets which may be all connected together and supplied with water in a suitable inlet (not shown). Above said cylinders is located a tubular is a rotatable valve core or plug 17, the same being provided with right angularly arranged ports which communicate with elongated ports 18provided in the closed top of each of the piston'cylinders. Also coininunicating with the rightangular openings with a suitable inletpip'e 21. It is to be understood that the manifold l9'extends longitlrdinally of the valve casing 16, and the valve casing 16 and filling the said cylinder i said valve casing, f inlet ports 18 is diametrically opposite the provided with a plurality of outlet ports 22 which have a'pipe connection with an exhaust manifold 23. The valve casing 16, intermediate of the ports 18 is provided with a plurality of oil cups 24 which are adapted to supply the valve plug e 17 with a lubricant so that the said plug may be freely rotated within the casing 16. The casing 17 has one of its vends closed and against this closed end one of. the ends of the plug. 17 :abuts.- The plug 17 projects ring, the same being through the second and open end of the eassurrounded by suitable packing glands arranged within a packing box 25 that is secured to one side of the engine casing or frame. The extending end of the plug is provided with a beveled gear 27 and is arranged within a gear casing 28.

The casing 28 is provided with an open front or end, the same being normally closed by a j removable door or plate 29 which is preferably connected to the casing through the medium of bolts 30, the shanks of which being received within suitable lugs in the side and endmembers of the said casing. -The casing may comprlse an open substantlally rectangular frame, one of the ends of which being closed by the engine casing and theropposite endbeingclosedby the plate, just referred to, or the said casing may be 7 provided with an inner wall which is secured I to one of the end walls of the engine casing.

vthe shaft gear 35 which meshes with a similar gear Such" inner wall-of the casing is provided with spaced bearings 31, for the reception being provided with a gear '33 that meshes with the gear one or more inwardly projecting lugs 34 being formed with semicylindrical vertically disposed depressions which engage withthe shaft 32 to assist the V bearings '31 in sustaining the said shaft against lateral movement. The lower end of 32 has secured thereon "a beveled 36 arrangedup'on one of the extending ends of the crank shaft 14. The gears in connect on with'the crank shaft 14 are so arranged that the crankshaft .14 will complete two .number of said cylinders to be The ports 37 are of a right revolutions'while the plug 17 completes a single revolution.

. Theplug 17 is provided with ports 37, the portscorrespondlng with the served, in' this example, four.

angular formation, and whenthe pistons are in the position illustrated in' Fig. 3,- and shown indej tail in Figs. 4, 5, 6 1intake :port 18 of and 7, the port 37 for the the cylinder 10 may be considered at zero, the pistonvlO being at its Y mpulse stroke .eommun1cates i The port 37 for'the port 18 withthe cylinder 11 and is fectly apparent to those inunicating with said arranged at an angle of with relation to the first mentioned port, the piston 11 in the said cylinder being at its compression stroke. The third port 37 of the plug is at an angle of 27 5 with relation to the first mentioned port, the piston 12 in the cylinder 12 being at its exhaust stroke, while the port 37 for the last cylinder, 13, is at an angle of with relation to the first mentioned port of the plug, the piston 13 in the cylinder 13 is charging so it will be noted that the ports in the plug are to be each a one-quarter turn apart from the preceding or succeeding one, and, of course, all of the ports are spaced from each other by the metal of the plug dividing the same.

i It is to be noted that the intake and outlet ports in the valve casing 16 are arranged diametrically opposite each other and also that the ports of the cylinders are disposed cen- .trally of said intakeand outlet ports, so it will be noted that while gas is admitted through one of the angular ports 37 throu h the elongated port in the top of one of t 1e cylinders, the discharge of the hydro-carbon from another cylinder will pass through the elongated port 18 of a second cylinder and will be directed through one of the angular ports or passages 37 of the plug 17 through one of the outlets 38 to the discharge manifold 23. By reference to Figs. l, 5, 6 and 7 it will also be noted that as the pistons in the cylinders 11 and 12 are at their highest positions the ports in the rotary valve will be more than one-half closed, and likewise the valve ports or passages for the cylinders 10 and 13, whose pistons are at their lowest stroke, are more than one-half closed and from the above description taken in connection with theaccompanying drawings, the simplicity of the device, as well as the advantages thereof will it is thought be perskillcd in the art to which such invention appertains without furtherdetailed description.

Having thus described the invention, what I claim is: V

In combination with an internal combustion engine having its cylinders each provided with a single combined inlet and exhaust port; a cylindrical valve casing secured upon the cylinders and extending along the upper portions thereof directly opposite said ports and provided with ports alining with said cylinder ports, an intake manifold disposed vertically above and spaced from said valve casing and extending parallel therewith, tubular members comintake manifold and with said valve casing in the same vertical planes with said ports, an exhaust manifold disposed vertically below and spaced from said valve casing and extending parallel therewith, tubular members communicating with said exhaust manifold and with said In testimony whereof I afiix my signature valve casing an 0113 sfiame vertical planes with in presence 01": two Witnesses.

said orbs an sai rst named tubular members, and a solid valve revoluble Within said a JASQN ALDERSON', valve casing and provided with angular 'Witnesses:

ports alining with said cylinder ports and FRANK A. NOLAND,

with said tubular members. DESSIE WEBSTER.

fioples of this patent may be obtained for five. cents each, by addressing the "flommlssionei' M Watemm a Washington, D. 0. 

